(19)

(11)

EP 1 556 663 A2

(12)

(88) Date of publication A3: 03.06.2004 (43) Date of publication: 27.07.2005 Bulletin 2005/30 (21) Application number: 03755787.3 (22) Date of filing: 04.09.2003

(51) International Patent Classification (IPC)7: F42B 1/00 (86) International application number: PCT/US2003/027822 (87) International publication number: WO 2004/036139 (29.04.2004 Gazette 2004/18)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 15.10.2002 US 270812 (71) Applicant: Key, Mark B. Indianapolis, IN 46237 (US)	(72) Inventor: Key, Mark B. Indianapolis, IN 46237 (US) (74) Representative: Holmes, Matthew Peter  Marks & Clerk,Sussex House,83-85 Mosley Street Manchester M29 7RJ Manchester M29 7RJ (GB)